organ parasitic mode stage note taxonomic group parasite
leaf hidden Tortricidae Archips podana
leaf vagrant Eriophyidae Phyllocoptes pteridii
leaf borer Anthomyiidae Chirosia betuleti
leaf borer Anthomyiidae Chirosia albitarsis
leaf borer Anthomyiidae Chirosia cinerosa
leaf borer Anthomyiidae Chirosia crassiseta
leaf borer Anthomyiidae Chirosia grossicauda
leaf borer Anthomyiidae Chirosia nigripes
leaf gall Cecidomyiidae Dasineura pteridicola
leaf gall Cecidomyiidae Dasineura pteridis
leaf gall Eriophyidae Eriophyes pteridis
leaf gall Platygloeales Herpobasidium filicinum
leaf gall Rhytismatales Cryptomyces pteridis
leaf gall Tenthredinidae Aneugmenus padi
leaf gall Tenthredinidae Aneugmenus temporalis
leaf miner Agromyzidae Phytoliriomyza hilarella
leaf miner main Anthomyiidae Chirosia histricina
leaf miner Tenthredinidae Aneugmenus coronatus
leaf miner Tineidae Psychoides verhuella
leaf pustule uredinia telia Pucciniales Uredinopsis pteridis
leaf vagrant Aphididae Amphorophora ampullata
leaf vagrant Aphididae Macrosiphum dryopteridis
leaf vagrant Aphididae Macrosiphum ptericolens
stem gall Gelechiidae Monochroa cytisella
stem borer rarely Blasticotomidae Blasticotoma filiceti
leaf vagrant Aphididae Idiopterus nephrolepidis

Organ

the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.

PARASITIC MODE

borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.

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IMPORTANT

The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.

 

mod 2.xii.2019